Explicit bounds for primes in residue classes |
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Authors: | Eric Bach Jonathan Sorenson |
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Institution: | Computer Sciences Department University of Wisconsin Madison, Wisconsin 53706 ; Department of Mathematics and Computer Science Butler University Indianapolis, Indiana 46208 |
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Abstract: | Let be an abelian extension of number fields, with . Let and denote the absolute discriminant and degree of . Let denote an element of the Galois group of . We prove the following theorems, assuming the Extended Riemann Hypothesis: - (1)
- There is a degree-
prime of such that , satisfying . - (2)
- There is a degree-
prime of such that generates the same group as , satisfying . - (3)
- For
, there is a prime such that , satisfying .
In (1) and (2) we can in fact take to be unramified in . A special case of this result is the following. - (4)
- If
, the least prime satisfies .
It follows from our proof that (1)--(3) also hold for arbitrary Galois extensions, provided we replace by its conjugacy class . Our theorems lead to explicit versions of (1)--(4), including the following: the least prime is less than . |
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Keywords: | |
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